package com.atguigu.lease.web.admin.service.impl;

import com.atguigu.lease.common.minio.MinioProperties;
import com.atguigu.lease.web.admin.service.FileService;
import io.minio.*;
import io.minio.errors.*;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.web.multipart.MultipartFile;

import java.io.IOException;
import java.security.InvalidKeyException;
import java.security.NoSuchAlgorithmException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.UUID;

@Service
public class FileServiceImpl implements FileService {

    @Autowired
    private MinioProperties minioProperties;

    @Autowired
    private MinioClient minioClient;

    @Override
    public String upload(MultipartFile file) throws ServerException, InsufficientDataException, ErrorResponseException, IOException, NoSuchAlgorithmException, InvalidKeyException, InvalidResponseException, XmlParserException, InternalException {
        boolean bucketExists = minioClient.bucketExists(BucketExistsArgs.builder().bucket(minioProperties.getBucketName()).build());
        if (!bucketExists){
            minioClient.makeBucket(MakeBucketArgs.builder().bucket(minioProperties.getBucketName()).build());
            String config = """
                       {
                             "Statement" : [ {
                               "Action" : "s3:GetObject",
                               "Effect" : "Allow",
                               "Principal" : "*",
                               "Resource" : "arn:aws:s3:::%s/*"
                             } ],
                             "Version" : "2012-10-17"
                       }
                    """.formatted(minioProperties.getBucketName());
            minioClient.setBucketPolicy(SetBucketPolicyArgs.builder().bucket(minioProperties.getBucketName()).config(config).build());
        }
        //优化下载文件
        String objectName  = new SimpleDateFormat("yyyyMMdd").format(new Date())+"/"+ UUID.randomUUID().toString()+" "+file.getOriginalFilename();
        minioClient.putObject(PutObjectArgs.builder().bucket(minioProperties.getBucketName()).contentType(file.getContentType()).object(objectName).stream(file.getInputStream(),file.getSize(),-1).build());
        //拼接回显地址
        String url = String.join("/", minioProperties.getEndPoint(), minioProperties.getBucketName(),objectName);
        return url;
    }
}
